Find the area of a triangle ABC, where AB = 6.8m, BC = 9.5m and AC = 10.2m.

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To find the area of the triangle, given the length of the three sides, we may use the Heron's Formula.

`A = sqrt(s(s-a)(s-b)(s-c))`

where       A -  Area of triangle

         a, b, c - length of  the sides of the triangle

                s - semi-perimeter, `s = (a+b+c)/2`

So, let a =AB=6.8m, b = BC=9.5m and c=AC=10.2m. 

Then, solve for s.

`s = (a+b+c)/2 = (6.8 + 9.5+10.2)/2 = 26.5/2= 13.25`

And, substitute values of ,...

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